UCWeb UC Browser Address Bar Spooofing
User Interface (UI) Misrepresentation of Critical Information vulnerability in the address bar of UCWeb's UC Browser allows an attacker to obfuscate the true source of data as presented in the browser. This issue affects UCWeb's UC Browser version 13.0.8 and prior versions.
- Published
- Oct 20, 2020
- Updated
- Jun 16, 2026
- EPSS
- 0.7% · 53th percentile
- CWE
- CWE-451
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Report tools
Action score
17
Monitor
Low priority for now.
- CVSS
- 17 / 40 · 4.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.7%
CNA vs NVD score
- NVD
- 4.3
- CNA · rapid7
- 4.3
- agree
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| ucweb | uc browser | cpe:2.3:a:ucweb:uc_browser |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ucweb uc browserbefore 13.3.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (rapid7). Independent of NVD's CPE analysis and usually ahead of it.
UCWeb UC Browser
- 13.0.8 and later · up to and including 13.0.8affected
Same product
ucweb: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-20041Ucweb UC Browser HTML URL improper restriction of rendered ui layers26Monitor
- CVE-2019-10251The UCWeb UC Browser application through 2019-03-26 for Android uses HTTP to download certain modules associated with PDF and Microsoft Offi23Monitor
- CVE-2019-10250UCWeb UC Browser 7.0.185.1002 on Windows uses HTTP for downloading certain PDF modules, which allows MITM attacks.23Monitor
- CVE-2020-7363UCWeb UC Browser Address Bar Spooofing17Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Rafay Baloch, and disclosed in accordanceRapid7's coordinated vulnerability disclosure policy at https://www.rapid7.com/security/disclosure#zeroday
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- low · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-451 · User Interface (UI) Misrepresentation of Critical InformationCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
- Internal SpearfishingT1534
- PhishingT1566
- Phishing: Spearfishing AttachmentT1566.001
- Phishing: Spearfishing LinkT1566.002
- Phishing: Spearfishing via ServiceT1566.003
- Phishing for InformationT1598
- Phishing for Information: Spearfishing ServiceT1598.001
- Phishing for Information: Spearfishing AttachmentT1598.002
- Phishing for Information: Spearfishing LinkT1598.003
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.